walsh



May 28. 1929. WALSH 1,715,154

AUXILIARY DOOR I Filed May 26, 1928 3 Sheets-Sheet 2 mv NTOR ATTORNEY May 28., 1929.

L. J. WALSH AUXILIARY D008 3 Sheets-Sheet Filed May 26, 1928 ATTORNEY Firemen/la as, 1929.

LAWR NCE J. WALSH, or isnooxLrrn-miw' YORK.

AUXILIARY noon.

Application filed May 26,

My invention is known asfan auxiliary doorand relates to devices attached to an entrance door or thedoor of a'room so that the small auxiliary door or aperture may be pose of the person desiring to enter.

Thejobjects of the invention are to pro,- tect or guard the home or the premises from the intrusion. of persons who could easily 1o gain entrance by. force orotherwise once the-main door. was opened for any reason. This protection andfthe privacy fafiorded thereby is highly desirable not only in private homes-but also in apartmentsfhotel ments on-trains, bath rooms andprivate 0f-- fices, etc; a q

The objects are attained by the installa5 tion Iof.tlienuxiliaryv door in a suitable position in, the door, preferably in the center of the'door at a height about level with the eyes of the average adult person. When one approaches thedoor from without and rings the bell or knocks on the door for ad- 1nittance, the occupant insteadof opening the room doorlforthwith', open the auxiliary ,door and by this means is able .tosee and V talk. with the caller and ascertain the purpose of the personbeforeadmitting him to the premises. 1 p

The foregoing objects are obtained by the means illustrated in the accompanying drawingsyin which merely the preferred form of. my invention is shown "and in which v Figure 1 is a perspective iew from the inside of a room showing my invention installed in a door, the door of the room being closed and the auxiliary door opened.

openedj-first in order to ascertain the purrooms, staterooms on steamships, compart-..

vice foruse indoors of varying thickness,v

Figure 2 is a transverse section of the defollows I 1928. Serial, No: 230,678.

the positions taken asfthe inside closure member is opened.

Figure 3 is a transverse section of the device, such as used on a thin panel door, and shows the insidemember open illustrating :1. the operation of the hinge-post. M) Figure 4 is a plan view of auxiliary door in which the relation of the various parts is disclosed. It is partly broken away to show the packing ring, therecess for the. 1 packing, the vertical section of the closure member, the re-inforcingweb member, the neck section of knob or handle, the integral key in knob section, the cross-section of op- .erating shaft, the key-way in the shaft, the

top scre'w hole in center of shaft, the hingeleaf, the stop .PIOJQCtlOIl bearing against latter, andthe hinge-post.

Figure 5 is a transverse section on the line Y of ig. 4, and shows the interior construction when the device is closed, the hinge-post, the manner in which the flange of the auxiliary door is forced against the lugs and the packing ring when the device is closed, thereby making a water-tight joint. This view also shows the device as attached to a very thin .door panel.

Figure 6 is a side elevation of the hingepost, partlyin section, showing the adjustment holes which are used to adjust the dealso showingtlie bearing sleeves with trunnions integral therewith making a flexible connection for attaching the hinge-leaf. The method of. attaching the hingedeaf is shown in the part broken away. v

Figures 7 and 8 are section views showing, in part, the detail of lugs on the outside member and the inside member, the introduction of the edge of themale lug into the female lug and the bearing of same against the taperededge of the female lug, thereby causing pressure against the flange of the in side member and in turn against the packing ring causing a water-tight joint. I The same reference characters indicate the same parts inall the drawings.

Referring to the drawings the safe-guard auxiliary door is installed and functions as flange portion 1 bears evenly and smoothly at" On the inside of theflange member 1 and 1ntegralthere-= be set forth:' j p The outside flange 1 consists'of a ring A hole of suitable size is out in the door auxiliary door B, which speaking generally, consists of three principal parts, tne outside member or ring 1 containing anxapcrture 2 :to'look through, theinside of closure member 3 and in the case ofa thick door, an inside ring 4 used to cover the hole made in the door.

Referring to. Fig. 2 the outside ring or every point without strain.

with four or any suitable number of bosses-3 with concentric holes 6 threaded internally for screws 7 (of which there are usually four) which latter are for the purpose of holding t-h'eoutslde member 1 firm integral.

"The inside member 3 fits'even with the outsideface of the part 1, thereby closing up the ring or aperture 2 onthe outside of the door while near the top of the handle 8 is an inside flange 9-used to cover the hole on the inside of the door. The inside flange 9 in' turn sets against a separate ring 4: at tached' to the inside of the door thereby clos ing the hole 011- the'inside of thedoor and giving a proper finish to same.

"Having described the main elementsof the device the detailed construction will now which is s'moothon the outside and on the inside are bosses 5 (usually four in number) clamping lugs 10, a recessed packing ring 11, two hinge-posts 12, anda shaft 14, all of Which are cast integral with the flange 1.

The inside or closure member consists of is a-key 19 cast integral with knob on inside bore. The'knob 8 contains a screw 20 which attaches theknob to the shaft 14. The

1 shaft 14 is threaded at 21 internally for a con siderable' distance so'as to make the shaft adjustable to doors of varying thickness.

'In the case, as in Fig. 2, where the device by a set-screw 22.

The hinge member of the device consistsof two principal parts, a sliding bearing 23 and a hinge-leaf 24. I The hinge-leaf 24 containing a hole orbore 25 of proper size to fit closely around the shaft lf, the same beance of the disk 3,

'ing held in place on shaft by means of a pin A. (Fig. 1) to admit the l insertion of the 2 The hinge leaf 24 is made to conform to the circular disk 3 and is approximately the same size, the purpose of the large surface of'thc leaf is to provide a suitable bearing surface on the disk 3 to hold this member in alignment with the aperture 2.

a Eccentric 11013l1 l)01'625 inhinge-leaf 2i,

rotation of-the disk 3 so as to either mesh orun-nieslr lu gs-29 and 10. The sliding bearing 23 has two trunnions 28 integral therewith over which the hinge-leaf 24 is fitted. I There are two"hinge posts-12 which,

as stated, arecast integral with the-outside member 1, and the posts contain a plurality of adjustment"holes 35 and at a. suitable distance (d pending upon the thickness of the door) there is inserted asa 111 34 which DQPmitsthe sleeve slide 23 and .the ihinge leaf 24Jto travel to the extremeend of hinge-post12 so as to allow for the cle'arthe hi'nge-pinsor trunnions-28 are made in- The sleeve-slide 23and' tegral.

0n. Fi 41, shown as an, integral wlth-f hinge leait'are shown two shoulders the pin-pose of which is to keep the-disk?) parallel with aperture 2 from top of, and at right angles with hinge posts 12 all thewaydown tocontact ring or ridge 32 with packing ring 11, thus assuring an easy, smooth entry of bottom portion of closure member 3 into clamping which are shown in further detail v I in .Figs. 5, 7 and" 8. The female lug 10 which is part of the flange 1 has a matched taper surface or projection 30 which coin-* cides with matched taper surface 31', in male piece 29 in disk 3 and these tapered parts when brought together in mesh exert pressureon disk 3' which in turn-forces contact 1'1ng82 of disk 3 to yielding surfacenof packing ring 11 in recess of flange 1. On

top surface of female luglO is provided a ramp 33 of suitable pitch which, if and when male lug 29 is brought down against ramp because of the pitch provided on the ramp the lug 29 andconsequently the disk: 3 will gravitate or slide to the positions indicated in F 7 and 8 and thence, by turning the knob 8 slightly the male and female portions of lugs are brought together thus effect ing a water-tight joint at the contact point I of the disk in connection with the pack- 2 because thehinge-leaf 24 is pulled along ,claim as new:

ing ring 11. The various positions taken by I to leftthereby clearing the male lugsv 219 from the female lugs 10 after which the disk 3 can be Withdrawn from the aperture the hinge-posts 12 until it reaches the-extre'me end thereof'whereit is stopped by the stop pins 345 provided at this point, the handleS is then pulled to the right thereby turning the hinge-leaf 24: and the disk at right angles to the hinge-posts 12, after Whichthe aperture 2 is entirely openfor the purpose of observation and conversation with the person outside the door. To close the aperture, the procedure is reversed and when the lugs 29 strike the ramp 33 they slide off until they fallbelow same and the shaft 14} is slightly rotated means of the handle S until'the lugs mesh'which, as be: fore stated, causes a water-tight joint.

Having thus described my invention, I

1. An auxiliary door may be insertedm the panel of a door,tlie

aperture tobe applied to the outside of a door and an interior closure member or disk applied on the inside sothat the out side surface of the said disk is flush with the exterior member. when the device is closed anda rotatable shaft cast integral with said disk, a'hmge-leaf attached at one point to.

theshaft and at the other end to hinge-posts means of sliding sleeves and :trunnions, thereby providing means for opening the inside member parallel to the apertureso that one may look through the opening made by the auxiliary door.

2; An auxiliarydoor so arranged that it may be inserted in the panel of a doorof q a11'y.kind,,the said device consisting of an exter or member having an aperture to "be I applied to the outside of a door and an in,-

terior closure member applied on the inside so that the outsldesur'lace of the said memher is flush with the exterior member when.

device is closed and a. rotatable shaft cast integral with said member,'a hinge-leaf attachedjat one point to the rotatable shaft and at theotherend to hinge-posts, sliding sl-eeves and trunnions, thereby providimg,- means for opening the nside member so that the one may look through. the opening madeby the auxiliary door, the said hinge-postsand-sliding sleeves and trun-a nions making it possible for closure member to clearthes des of the aperture in the (lOOl Wl1'll 0p8111Ilg or closing the auxiliary door.,

a 3. An auxiliary door so arranged that it ,n aybe nserted 1n the panel of a'door ofv so arranged that it any kind, the said device consisting of an exterior member having an aperture to be applied to the outside of a door and an interlor closure member applied on the inside so that the outsidesurface of the said member is flush with the exterior member when device is closed and a rotatable shaft cast integral with said member, a hinge-leaf attached atone point to the rotatable shaft one may look through theiopening made by the auxiliary door, the said hingeposts and sliding sleeves and trunnions making it possible for closure member to clear the sides terior member having an aperture to be applied to the outside of a door and an interior closure member applied onthe insideso that the outside surface of the said member is flush withthe exterior member when device is closed and a rotatable shaft cast integral with said member, a hinge leaf attached at one point to the rotatable shaft and at the otherend to hinge-posts with sliding sleeves and trunnions,,thereby providing means for opening the inside member so that one may 1 look through the opening made by the auxiliary door, thesaid. hinge-posts and sliding sleeves andtrunmons making it possible for closure member to clear the sides of the aperture in the'door while opening or'fclosing same, sa d hinge-posts having a plurality of -holes at su table intervals which may be.

used for purpose of adjusting device to fit doors of varymg thickness and said hinge leaf so attached to the rotatable shaft that the closure member or disk may be swivelled on said-hinge-leaf to either side by the. said hinge leaf operating against a limiting stop on the said closure disk so as to confine the swivel action of same. to predetermined limits thereof v 5. An auxiliary door so arranged that it may be inserted in the panel of a door of any kind, the said device consisting of an exterior member having an aperture to be applied to the outside of a doorand an interior closure member applied on the inside so that the outside surface of the said disk is flush withthe exterior member when de vice is closed and a rota-table shaft cast integral with said member, a hinge-leaf attached at one point to the rotatable shaft and at the other end to hinge-' )osts with sliding sleeves and trunnions, thereby providing means for opening the inside member so that one may look through the opening made by the auxiliary door, the said hinge-posts and sliding sleeves and trunnions making it possible for closure member to clear the sides of the aperture in the door while opening or closing same, said hinge posts having a plurality of holes at suitable intervals which :may be used for purposes of ad usting said 10 device to fit'doors ofjvarying thickness, said hinge leaf so attached to the rotatable shaft that the closure member or disk maybe swivelled on said hinge-leaf to either side by' the said hinge-leaf operatin against a limit i ing stop on'the said closure disk so as to conmay be inserted in thepanel of a door of' any kind, the said device consisting of an exterior member havlng an aperture to be applied to the outside of adoorand an interior closure member appliedon the inside so that the voutside surface of the said member is flush with the exterior member when said -d eviee is closed and a rotatable shaft cast integral WltlI- said disk, a hinge-leaf attached" at one point to the rotatable shaft and at the otherend to hinge-posts,'sliding sleeves and trunnions, thereby providing means for opening the inside member'so thatone may look through the opening made by the auxil iary door, the said hinge-posts and sliding sleeves and trunnions making itspossible for closure member to clear the sides of the aperture in the door while opening or closing same, said hinge posts having a plurality of holes at suitable intervals, which may be used for purposes of adjusting said device to fit doors of varying thickness, said hinge leaf s'o attached to the rotatable shaft that tl closure member may be swivelled on said hinge-leaf to eitherside by the said hingeleaf operating against a limiting stop on the said closure member so as to confine the swivel action of same to predetermined limits thereof, male and female cams or lugs, integral with inside and outside closure members respectively, so arranged that when same are brought together in mesh the opening in the device is locked and when male lugs are rotated by means of shaft the device may be opened, and'the'said male and female lugs having tapered surfaces, wedgeshaped and opposed to one another so that whensame are drawn together in mesh, pressure is exerted against the closure member or disk thereby forcing a contact bead or edge on disk into a recessed groove-containing a joint. as shown. v y

7. An auxiliary door so arranged "that it may be'inserted in the panel of doors of varying thickness, the said device having an outside member shaped like a ring, with a recessed packing ring, two hinge-posts, fe-

male lugs and bosses threaded internallyffor packing ring, thus making a water-tight attaching said device by screws on the inside of door, all of which are cast integral; an inside closure member fitting in and flush with said outside member when closed, i means for opening said member consisting of e a rotatable shaft and a limitingstop cast integral therewith, a hinge-leaf attached to said rotatable shaft at one point and to "hinge-posts by means of sleeve-bearings at the other end, saidhinge-leaf being held close against the closure disk by a pin in said shaft and the rotation of the-shaft being possible only to the limits prescribed by the limiting stop operating in a slot in the said hinge-leaf as shown. k

8. An auxiliary door so arranged that it may be inserted in the panel of doors of varying thickness, the said device having an outside member shaped like a r1ng,.w1th a recessed packing ring, two hinge-posts, fe

male lugs and bosses threaded internally for attaching said device byscrews on the 'in side of door, all of which are cast integral;

an inside closure member fitting in and flush Wltll' said outside member when closed,"

means for opening said member consisting of a rotatable shaft and a limiting stop cast integral therewith, a hinge-leaf attached to said rotatable shaft at one point and to hinge-posts by means of the sleeve-bearings loo at the other end, said hinge-leaf being held close against the closure-disk by a pin in said shaft and the rotation of the shaft being possible only to the limits'prescribed by the limiting stop operating in a slot in the said hinge-leaf and suitable flanges for in side of door, the same consisting; ofan inside ring to go around hole in door and a circular flange attached to the neck of the shaft by a set screw for purpose of covering inside'of device and to provide a suitable finish for the interior of the door,'substantially as shown. i

9. An auxiliary door so arranged that it may be inserted in the panel of a door of any kind, the said device being adjustable tovfit the thickness of the door 'and'consisting ofan exterior member closely fitting the outside panel of the door and having a hole therein for purposes of observation,

hinge-posts cast integral with the exterior member and a part operating on said hinge,

joint so as to provide an opening through which may be seen those desiring to enter the premises; said exterior member pro vided with a packing ring, bosses and lugs, l

the said packing being positioned in a re-uao" cessed portion of said exterior member therei by providing a watertight joint; an interior member operated by turning same by means of an adjustable knob which When turned about a quarter turn releases a flange on said interior member from the lugs on the exterior member and permits the opening of a port through which the person desiring admission to the premisesmay be inter- ,vieWed, said posts having a plurality of 10 holes for adjusting the auxiliary door to the thickness of any door and vtWo sliding-sleeves east integral With trunnions supporting a hinge-leaf used in the opening and closing of the port, substantially as shown.

in witness whereof, I have hereunto set my hand.

LAWRENCE J. \VALSH. 

